Home / 438,758.10-658,137.15-123,225.30

Finding the Fourth Proportional to 438,758.10, 658,137.15 and 123,225.30

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Solution

The fourth proportional to 438,758.10, 658,137.15 and 123,225.30 is: 184,837.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,758.10 : 658,137.15 = 123,225.30 : x
  2. Step 2: Convert to fraction form
    438,758.10/658,137.15 = 123,225.30/x
  3. Step 3: Cross multiply
    438,758.10x = 658,137.15 × 123,225.30
  4. Step 4: Simplify right side
    438,758.10x = 81,099,147,749.90
  5. Step 5: Solve for x
    x = 81,099,147,749.90/438,758.10
  6. Step 6: Final answer
    x = 184,837.95

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.